/***************************************************************************
 *   This file is part of the Lime Report project                          *
 *   Copyright (C) 2021 by Alexander Arin                                  *
 *   arin_a@bk.ru                                                          *
 *                                                                         *
 **                   GNU General Public License Usage                    **
 *                                                                         *
 *   This library is free software: you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation, either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 *                                                                         *
 **                  GNU Lesser General Public License                    **
 *                                                                         *
 *   This library is free software: you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License as        *
 *   published by the Free Software Foundation, either version 3 of the    *
 *   License, or (at your option) any later version.                       *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library.                                      *
 *   If not, see <http://www.gnu.org/licenses/>.                           *
 *                                                                         *
 *   This library is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 ****************************************************************************/
#include "lralignpropitem.h"

#include "lrtextitem.h"
#include "objectinspector/editors/lrcomboboxeditor.h"
#include "objectinspector/propertyItems/lrenumpropitem.h"

namespace {
LimeReport::ObjectPropItem* createAlignItem(QObject* object,
                                            LimeReport::ObjectPropItem::ObjectsList* objects,
                                            const QString& name, const QString& displayName,
                                            const QVariant& data,
                                            LimeReport::ObjectPropItem* parent, bool readonly)
{
    return new LimeReport::AlignmentPropItem(object, objects, name, displayName, data, parent,
                                             readonly);
}

bool VARIABLE_IS_NOT_USED registred = LimeReport::ObjectPropFactory::instance().registerCreator(
    LimeReport::APropIdent("alignment", "LimeReport::TextItem"), QObject::tr("alignment"),
    createAlignItem);
} // namespace

namespace LimeReport {

QString AlignmentPropItem::associateValue(int value, const AlignMap* map) const
{
    QString result;
    QMap<QString, Qt::Alignment>::const_iterator it = map->constBegin();
    for (; it != map->constEnd(); ++it) {
        if ((value & it.value())) {
            if (result.isEmpty())
                result += it.key();
            else
                result = result + " | " + it.key();
        }
    }
    return result;
}

AlignmentPropItem::AlignmentPropItem(QObject* object, ObjectsList* objects, const QString& name,
                                     const QString& displayName, const QVariant& value,
                                     ObjectPropItem* parent, bool readonly):
    ObjectPropItem(object, objects, name, displayName, value, parent, readonly)
{

    m_horizMap.insert(tr("Left"), Qt::AlignLeft);
    m_horizMap.insert(tr("Right"), Qt::AlignRight);
    m_horizMap.insert(tr("Center"), Qt::AlignHCenter);
    m_horizMap.insert(tr("Justify"), Qt::AlignJustify);

    m_vertMap.insert(tr("Top"), Qt::AlignTop);
    m_vertMap.insert(tr("Center"), Qt::AlignVCenter);
    m_vertMap.insert(tr("Botom"), Qt::AlignBottom);

    m_horizEditor = new AlignmentItemEditor(object, objects, name, tr("horizontal"), value.toInt(),
                                            this, false, m_horizMap);
    m_vertEditor = new AlignmentItemEditor(object, objects, name, tr("vertical"), value.toInt(),
                                           this, false, m_vertMap);

    this->appendItem(m_horizEditor);
    this->appendItem(m_vertEditor);
}

QString AlignmentPropItem::displayValue() const
{
    return associateValue(propertyValue().toInt(), &m_horizMap) + " | "
        + associateValue(propertyValue().toInt(), &m_vertMap);
}

void AlignmentPropItem::setPropertyValue(QVariant value)
{
    m_horizEditor->setPropertyValue(value);
    m_vertEditor->setPropertyValue(value);
    ObjectPropItem::setPropertyValue(value);
}

AlignmentItemEditor::AlignmentItemEditor(QObject* object, ObjectsList* objects, const QString& name,
                                         const QString& displayName, const QVariant& value,
                                         ObjectPropItem* parent, bool readonly,
                                         AlignMap acceptableValues):
    ObjectPropItem(object, objects, name, displayName, value, parent, readonly),
    m_acceptableValues(acceptableValues)
{
    if (!extractAcceptableValue(value.toInt()).isEmpty())
        setPropertyValue(extractAcceptableValue(value.toInt())[0]);
    else
        setPropertyValue(0);
}

void AlignmentItemEditor::setModelData(QWidget* propertyEditor, QAbstractItemModel* model,
                                       const QModelIndex& index)
{
    int flags = object()->property(propertyName().toLatin1()).toInt();
    int align = m_acceptableValues.value(qobject_cast<ComboBoxEditor*>(propertyEditor)->text());
    flags = clearAcceptableValues(flags) | align;
    object()->setProperty(propertyName().toLatin1(), flags);
    if (objects())
        foreach (QObject* item, *objects()) {
            item->setProperty(propertyName().toLatin1(), flags);
        }
    parent()->setPropertyValue(flags);
    model->setData(index, align);
}

QVector<int> AlignmentItemEditor::extractAcceptableValue(int flags)
{
    QVector<int> result;
    AlignMap::const_iterator it = m_acceptableValues.constBegin();
    for (; it != m_acceptableValues.constEnd(); ++it) {
        if (flags & it.value())
            result << it.value();
    }
    return result;
}

int AlignmentItemEditor::clearAcceptableValues(int flags)
{
    AlignMap::const_iterator it = m_acceptableValues.constBegin();
    for (; it != m_acceptableValues.constEnd(); ++it) {
        if (flags & it.value())
            flags = flags ^ it.value();
    }
    return flags;
}

QWidget* AlignmentItemEditor::createProperyEditor(QWidget* parent) const
{
    ComboBoxEditor* editor = new ComboBoxEditor(parent);
    QStringList enumValues;
    enumValues << m_acceptableValues.keys();
    editor->addItems(enumValues);
    return editor;
}

void AlignmentItemEditor::setPropertyEditorData(QWidget* propertyEditor, const QModelIndex&) const
{
    ComboBoxEditor* editor = qobject_cast<ComboBoxEditor*>(propertyEditor);
    editor->setTextValue(m_acceptableValues.key(Qt::Alignment(propertyValue().toInt())));
}

QString AlignmentItemEditor::displayValue() const
{
    return m_acceptableValues.key(Qt::Alignment(propertyValue().toInt()));
}

void AlignmentItemEditor::setPropertyValue(QVariant value)
{
    QVector<int> _accpepttableValueList = extractAcceptableValue(value.toInt());
    if (_accpepttableValueList.isEmpty())
        return;

    ObjectPropItem::setPropertyValue(_accpepttableValueList[0]);
}

} // namespace LimeReport
